Ultra Saber Pour-On InsecticideULTRA SABER POUR ON INSECTICIDE A long lasting option for horn flies and lice. Containing 1% lambda cyhalothrin synergized with 5% piperonyl butoxide, ULTRA SABER POUR ON INSECTICIDE controls lice and horn flies on beef cattle and calves. Dosage and Usage: 10 mL for cattle weighing less than 600 lbs., applied down the midline of the back. 15 mL for cattle weighing more than 600 lbs., applied down the midline of the back. Not for use on dairy cattle.